Review: 1. A quantity is completely described by magnitude alone. A quantity Is completely described by a magnitude with a direction.

a. scalar, vector

b. vector, scalar

2. Speed is a quantity and
velocity is a quantity.

a. scalar, vector

b. vector, scalar

1. 1. A quantity is completely described by magnitude alone. A quantity Is completely described by a magnitude with a direction.

[a]. scalar, vector

b. vector, scalar

2.2. Speed is a velocity is a quantity and quantity.

a. scalar, vector

[b]. vector, scalar

the answer is kevlar

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.